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<h3 class="heading"><span class="type">Paragraph</span></h3>
<p><dfn class="terminology">Answer</dfn>:</p>
<div class="displaymath process-math" data-contains-math-knowls="">
\begin{equation*}
\begin{aligned}
&amp;y(x_0)=a_0:\quad a_0=C_1 y_1(x_0)+C_2 y_2 (x_0),\\
&amp;y^{\prime}(x_0)=a_1:\quad a_1=C_1 y_1^{\prime} (x_0)+C_2 y_2^{\prime} (x_0),\\
&amp;\rightarrow C_1=\frac{\left| \begin{array}{cc} a_0 &amp; y_2(x_0)\\ a_1  &amp; y_2^{\prime}(x_0) \end{array}    \right|}{W_0},\quad C_2=\frac{\left| \begin{array}{cc} y_1(x_0) &amp; a_0 \\ y_1^{\prime}(x_0) &amp;a_1 \end{array}    \right|}{W_0}, \quad (\mathrm{Cramer's~rule})
\end{aligned}
\end{equation*}
</div>
<p class="continuation">where</p>
<div class="displaymath process-math" data-contains-math-knowls="">
\begin{equation*}
W_0=\left| \begin{array}{cc} y_1(x_0) &amp; y_2(x_0) \\ y_1^{\prime}(x_0) &amp; y_2^{\prime}(x_0) \end{array}    \right|.
\end{equation*}
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<span class="incontext"><a href="sec3_2.html#p-77" class="internal">in-context</a></span>
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